- How To Download Gem5 On Mac Os
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- How To Download Gem5 On Macbook Pro
- How To Download Gem5 On Mac Pro
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This chapter covers the details of how to set up a gem5 developmment environment and build gem5.
Todo
Add a pointer to the gem5 docker image.In fact, we may want to have a docker image for each section.
GEM5 runs on Linux only. No support is provided for MAC and Windows. sudo apt update (optional to update all the packages on Linux). mkdir gem5latest (Create a new directory to save GEM5 install). cd gem5latest (Goto this new directory). Gem5 repositories. There are two main gem5 repositories found on repo.gem5.org, gem5, and gem5-stable. Gem5 is the main development repository, which is updated very frequently (a few times per week).This repository has all of the latest bugfixes and features. However, there are often bugs introduced and changes to APIs. Gem5-stable, is released once every few months and pulls in most of.
Requirements for gem5¶
See gem5 requirements for more details.
- hg (Mercurial):
- The gem5 project uses Mercurial for version control.Mercurial is a distributed version control system (like git).It uses simple commands that should be familiar to svn users as well.More information about Mercurial can be found by following the link.Mercurial should be installed by default on most platforms.However, to install Mercurial in Ubuntu use
- gcc 4.6+
- You may need to use environment variables to point to a non-default version of gcc.For CSL machines, you can add the following to your .bashrc.local, assuming you’re using bash as your shell.On Ubuntu, you can install a development environment with
- SCons
- gem5 uses SCons as its build environment.SCons is like make on steroids and uses Python scripts for all aspects of the build process.This allows for a very flexible (if slow) build system.To get SCons on Ubuntu use
- Python 2.5+
- gem5 relies on the Python development libraries.On CSL machines, you may experience errors with the default Python version (2.5).To use version 2.7 you can add the following to your .bashrc.local:To install these on Ubuntu use
- SWIG 2.0.4+
- SWIG is a set of scripts and libraries that wraps C++ objects and exports them to scripting languages, like Python.gem5 uses SWIG to export C++ SimObjects to the Python configuration files. Hp deskjet 2540 mac driver download.To install SWIG on Ubuntu useOn CSL machines, you can use swig found in
/s
:You may have to install SWIG manually.In that case, you can download the source from http://www.swig.org/download.html.Version 2.0.4 is known to work with gem5.Then, unpack, build, and install:
- protobuf 2.1+
- “Protocol buffers are a language-neutral, platform-neutral extensible mechanism for serializing structured data.”In gem5, the protobuf library is used for trace generation and playback.protobuf is not a required package, unless you plan on using it for trace generation and playback.
Getting the code¶
Change directories to where you want to download the gem5 source.Then, to clone the repository, use the
hgclone
command.You can now change directories to
gem5
which contains all of the gem5 code.How To Download Gem5 On Mac Os
Your first gem5 build¶
Let’s start by building a basic x86 system.Currently, you must compile gem5 separately for every ISA that you want to simulate.Additionally, if using ruby, you have to have separate compilations for every cache coherence protocol.
To build gem5, we will use SCons.SCons uses the SConstruct file (
gem5/SConstruct
) to set up a number of variables and then uses the SConscript file in every subdirectory to find and compile all of the gem5 source.SCons automatically creates a
gem5/build
directory when first executed.In this directory you’ll find the files generated by SCons, the compiler, etc.There will be a separate directory for each set of options (ISA and cache coherence protocol) that you use to compile gem5.There are a number of default compilations options in the
build_opts
directory.These files specify the parameters passed to SCons when initially building gem5.We’ll use the X86 defaults and specify that we want to compile all of the CPU models.https://newcellphone954.weebly.com/blog/apple-com-migrate-to-mac-download. The main argument passed to SCons is what you want to build, build/X86/gem5.opt.In this case, we are building gem5.opt (an optimized binary with debug symbols).We want to build gem5 in the directory build/X86.Since this directory currently doesn’t exist, SCons will look in
build_opts
to find the default parameters for X86.(Note: I’m using -j9 here to execute the build on 9 of my 8 cores on my machine.You should choose an appropriate number for your machine, usually cores+1.)The output should look something like below:
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When compilation is finished you should have a working gem5 executable at
build/X86/gem5.opt
.The compilation can take a very long time, often 15 minutes or more, especially if you are compiling on a remote file system like AFS or NFS.Common errors¶
Wrong gcc version¶
Update your environment variables to point to the right gcc version, or install a more up to date version of gcc.See Requirements for gem5.
Wrong SWIG version¶
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Update your environment variables to point to the right SWIG version, or install a more up to date version of SWIG.See Requirements for gem5.
Python in a non-default location¶
If you use a non-default version of Python, (e.g., version 2.7 when 2.5 is your default), there may be problems when using SCons to build gem5.RHEL6 version of SCons uses a hardcoded location for Python, which causes the issue.gem5 often builds successfully in this case, but may not be able to run.Below is one possible error you may see when you run gem5.
To fix this, you can force SCons to use your environment’s Python version by running
python`whichscons`build/X86/gem5.opt
instead of sconsbuild/X86/gem5.opt
.More information on this can be found on the gem5 wiki about non-default Python locations: Using a non-default Python installation.How To Download Gem5 On Mac Pro
M4 macro processor not installed¶
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![How To Download Gem5 On Mac How To Download Gem5 On Mac](/uploads/1/2/6/7/126706115/471571718.png)
If the M4 macro processor isn’t installed you’ll see an error similar to this:
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Just installing the M4 macro package may not solve this issue.You may nee to also install all of the
autoconf
tools.On Ubuntu, you can use the following command.